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Clean Air Act stationary source · ICIS-AIR CAMDA00006071M0087

DUCOMMUN AEROSTRUCTURES (FRMLY AEROCHEM), Adelanto, CA: Clean Air Act compliance record, inspections, violations, penalties

DUCOMMUN AEROSTRUCTURES (FRMLY AEROCHEM), at 4001 EL MIRAGE RD, Adelanto in San Bernardino County, California, is an operating major source of air pollution on EPA’s ICIS-AIR register. EPA’s file records its current violation status (ICIS-AIR’s high-priority violation field) as “No Violation Identified”. San Bernardino County is on EPA’s Green Book list of areas that do not meet a national air quality standard. The status and classification are as EPA’s facility file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the source’s current standing, quarter by quarter.

Identity

Facility as filedDUCOMMUN AEROSTRUCTURES (FRMLY AEROCHEM)
ICIS-AIR IDCAMDA00006071M0087
EPA facility registry ID110000479161
Operating statusOperating
Emissions classificationMajor source
Current violation status (ICIS-AIR high-priority violation field)No Violation Identified
Address4001 EL MIRAGE RD, Adelanto, CA 923010000
CountySan Bernardino County
In a nonattainment countyYes (EPA Green Book)
Industry (NAICS)Fabricated metal product manufacturing (NAICS 3328)
SIC code3479
EPA region09
Local air agencyMojave Desert Air Quality Management District (Non-Grantee)

Cited to the EPA ICIS-AIR facility file (ECHO download).

Programs and pollutants

Velarion’s copy of EPA’s ICIS-AIR download does not include its program, pollutant and Title V certification files, so this page does not list the Clean Air Act programs DUCOMMUN AEROSTRUCTURES (FRMLY AEROCHEM) is under or the pollutants it is permitted for. The programs each evaluation and violation below was recorded under are shown with it. EPA’s free Detailed Facility Report lists both.

Compliance evaluations

DateWhat EPA recordedAgencyPrograms
April 24, 2025PCE On-SiteLocalMACT Standards (40 CFR Part 63); New Source Performance Standards; Title V Permits
December 12, 2024FCE On-SiteLocalMACT Standards (40 CFR Part 63); New Source Review Permit Requirements; Title V Permits
February 13, 2024PCE On-SiteLocalMACT Standards (40 CFR Part 63); New Source Review Permit Requirements; Title V Permits
June 13, 2023FCE On-SiteLocalMACT Standards (40 CFR Part 63); New Source Review Permit Requirements; Title V Permits
February 8, 2023FCE On-SiteLocalMACT Standards (40 CFR Part 63); New Source Review Permit Requirements; Title V Permits
February 2, 2023PCE On-SiteLocalMACT Standards (40 CFR Part 63); New Source Review Permit Requirements; Title V Permits
March 15, 2022PCE On-SiteLocalMACT Standards (40 CFR Part 63); New Source Review Permit Requirements; Title V Permits
March 10, 2022FCE On-SiteLocalMACT Standards (40 CFR Part 63); New Source Review Permit Requirements; Title V Permits
January 27, 2021FCE Off-SiteLocalMACT Standards (40 CFR Part 63); New Source Review Permit Requirements; Title V Permits
November 10, 2020PCE On-SiteLocalMACT Standards (40 CFR Part 63); New Source Review Permit Requirements; Title V Permits
December 18, 2019FCE Off-SiteLocalMACT Standards (40 CFR Part 63); New Source Review Permit Requirements; Title V Permits
September 5, 2019PCE On-SiteLocalMACT Standards (40 CFR Part 63); New Source Review Permit Requirements; Title V Permits
November 27, 2018FCE Off-SiteLocalMACT Standards (40 CFR Part 63); New Source Review Permit Requirements; Title V Permits
September 4, 2018PCE On-SiteLocalMACT Standards (40 CFR Part 63); New Source Review Permit Requirements; Title V Permits
December 7, 2017FCE Off-SiteLocalMACT Standards (40 CFR Part 63); New Source Review Permit Requirements; Title V Permits
August 8, 2017PCE On-SiteLocalMACT Standards (40 CFR Part 63); New Source Review Permit Requirements; Title V Permits
February 9, 2017FCE Off-SiteLocalMACT Standards (40 CFR Part 63); New Source Review Permit Requirements; Title V Permits

Violations

A high-priority violation (HPV) is the most serious class of Clean Air Act non-compliance an agency records; a federally reportable violation (FRV) is the next step down. Each row is one determination as EPA’s violation history files it.

DateWhat EPA recordedAgencyPrograms
September 14, 2017Earliest FRV determinationLocalMACT Standards (40 CFR Part 63); New Source Review Permit Requirements; Title V Permits

Enforcement and penalties

1 formal enforcement actions since January 1, 2017, 1 of them with a penalty filed above zero. Each penalty is shown as EPA’s formal action file states it; “Not stated” means the file gives no figure, and $0 is a disclosed zero.

DateWhat EPA recordedAgencyPenalty, as filed
October 18, 2017Administrative OrderLocal$500

Informal enforcement

DateWhat EPA recordedAgency
September 14, 2017Notice of ViolationLocal

Stack tests

EPA’s stack test file holds no test at ICIS-AIR CAMDA00006071M0087 since January 1, 2017.

Cited to the EPA ICIS-AIR evaluation, violation, stack test and enforcement files (ECHO download), events dated January 1, 2017 or later as loaded; up to 50 rows of each shown, newest first.

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How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every source on ECHO: its compliance status quarter by quarter, its evaluations, and its violations, enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter EPA facility registry ID 110000479161 there.

Nearby on the register

Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.